examples/keyget_model.conf

[request_definition]
r = sub, obj, act

[policy_definition]
p = sub, obj, act

[policy_effect]
e = some(where (p.eft == allow))

[matchers]
m = r.sub == p.sub && (r.obj == p.obj || keyGet(r.obj, p.obj) in ('age','name')) && regexMatch(r.act, p.act)